Industry: 3568—Mechanical Power Transmission Equipment, Not Elsewhere Classified
Establishments primarily engaged in manufacturing mechanical power transmission equipment and parts, for industrial machinery. Establishments primarily engaged in manufacturing motor vehicle power transmission equipment are classified in Industry 3714; those manufacturing aircraft power transmission equipment are classified in Industry 3728; those manufacturing ball and roller bearings are classified in Industry 3562; and those manufacturing speed changers, industrial high-speed drives, and gears are classified in Industry 3566.
| Ball joints, except motor vehicle and aircraft | Joints, swivel: except motor vehicle and aircraft |
| Bearings, plain | Joints, universal: except motor vehicle |
| Belting, chain | Pillow blocks, with plain bearings |
| Chain, power transmission | Pivots, power transmission |
| Clutches, except motor vehicle | Pulleys, power transmission |
| Collars, shaft (power transmission equipment) | Railroad car journal bearings, plain |
| Couplings, shaft rigid, flexible, universal joint, etc. | Shafts, flexible |
| Drive chains, bicycle and motorcycle | Sprockets (power transmission equipment) |
| Codes |
Titles | Total Marketable US Businesses |
| 35680000 | Power transmission equipment, nec | 244 |
| 35680100 | Bearings, bushings, and blocks | 30 |
| 35680101 | Bearings, plain | 17 |
| 35680102 | Pillow blocks with plain bearings | 2 |
| 35680103 | Railroad car journal bearings | 6 |
| 35680200 | Joints and couplings | 10 |
| 35680201 | Ball joints, except aircraft and auto | 2 |
| 35680202 | Couplings, shaft: rigid, flexible, universal joint, etc. | 33 |
| 35680203 | Joints, swivel and universal, except aircraft and auto | 11 |
| 35680300 | Drives, chains, and sprockets | 9 |
| 35680301 | Belting, chain | 10 |
| 35680302 | Chain, power transmission | 9 |
| 35680303 | Drive chains, bicycle or motorcycle | 4 |
| 35680304 | Drives: belt, cable, or rope | 3 |
| 35680305 | Sprockets (power transmission equipment) | 15 |
| 35689901 | Clutches, except vehicular | 28 |
| 35689902 | Collars, shaft (power transmission equipment) | 3 |
| 35689903 | Pivots, power transmission | 5 |
| 35689904 | Pulleys, power transmission | 9 |
| 35689905 | Shafts, flexible | 10 |
